Diplopia is double vision caused by a problem with the muscles that control the eye or the nerves that stimulate those muscles.

Headaches are one of the most common health complaints. They are caused by a variety of factors and can be divided into the following groups:

Normal vision, or 20/20 vision, means that a person can read the smallest letters or see the pictures on an eye chart when standing 20 feet away from the chart. Some people cannot see normally even with eyeglasses or contacts because a medical condition affects their vision. These people are called visually impaired or visually disabled.

This kind of headache is also common. Migraine pain is related to activity in the brain that swells blood vessels of the scalp, causing throbbing pain, nausea, sensitivity to light, sounds, or odors, and pain that increases with movement. The exact cause of migraines is still unknown. About one in 10 people suffer from migraines, and they affect more women than men. Migraines can run in families and can affect young children as well.

Optic Nerve Disorders and Neuro-OphthalmologyIschemic Optic Neuropathy

Ischemic optic neuropathy, a condition caused by restricted blood flow to the optic nerve, is the sudden loss of vision in one or sometimes both eyes. It primarily affects the elderly. There are two forms of ischemic optic neuropathy, caused by differing underlying conditions.

Multiple Sclerosis

Multiple sclerosis (MS) is an autoimmune disease that causes your body to produce antibodies that mistakenly attack the myelin sheath protecting your nerve tissue. This chronic central nervous system disorder damages the nerves and causes the gradual loss of muscle control, strength, and vision.  Often, the first symptom a person experiences is changes to their vision, and an ophthalmologist is frequently among the first specialist to help in the diagnosis of this disease.

Tobacco smoking is directly linked to many adverse health effects, including high blood pressure, heart disease, and cancer. Smoking is also linked to eye disease.

Strabismus refers to misaligned eyes. Esotropia (crossed eyes) occurs when the eyes turn inward. Exotropia (wall-eye) occurs when the eyes turn outward. When one eye is higher than the other, it is called hypertropia (for the higher eye) or hypotropia (for the lower eye). Strabismus can be subtle or obvious, and can occur occasionally or constantly. It can affect one eye or shift between the eyes.

A stroke is a life-threatening emergency in which the blood supply to the brain is interrupted or severely reduced, depriving it of oxygen and killing brain cells. Quick treatment could save your life and minimize damage to your brain.

Sports Eye Injuries

Every year, hospital emergency rooms treat nearly 40,000 victims of sports eye injuries. All professional and recreational athletes participating in eye-hazardous sports need to wear eye protection. To help prevent sports eye injuries, protective polycarbonate eyewear should be worn whether or not prescription eyewear is needed. All prescription eyewear used during sports should be made from polycarbonate lenses.

Vision and Refractive Errors

Computer Screens

Complaints of eye discomfort and fatigue are becoming more common as the use of computer screens increases. While it is true that computer screens can cause eyestrain, there is no convincing evidence that they can harm the eyes.